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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of4) >> DTC/Circuit Diagnosis >> DTC P26A5: Multi-Way Control Valve Position Sensor >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

NOTE:
  • If DTC P26A5 is displayed with DTC P0117 or P0118, first perform the trouble diagnosis for DTC P0117 or P0118. Refer to DTC INDEX .
  • If DTC P26A5 is displayed with DTC P26A3 first perform the trouble diagnosis for DTC P26A3. Refer to DTC LOGIC .
  • If DTC P26A5 is displayed with DTC P26A6, or P26A7 first perform the trouble diagnosis for DTC P26A6, or P26A7. Refer to DTC LOGIC .
DTC No. Trouble diagnosis name
(Trouble diagnosis content)		 DTC detecting condition Possible Cause
P26A5 ENGINE COOLANT B/V A POSI SEN
(Engine coolant bypass valve A position sensor circuit range/performance)		 ECM detects the following status:
  • A voltage signal transmitted from the multi-way control valve position sensor is 4.76 V or more/4.3 V or less. Outside the above threshold when the valve is moved to the upper side stopper after ignition OFF.
  • A voltage signal transmitted from the multi-way control valve position sensor is 0.8 V or more/0.34 or less. Outside the threshold when the valve is moved to the lower side stopper after engine start.
  • Harness or connectors

    (Multi-way control valve position sensor circuit is open or shorted.)

  • Multi-way control valve position sensor
  • Sensor power supply 2
 
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